Gentlemen - I recently purchased a Tikka T3X Compact in .308. I have both the 3 and 5 round Tikka factory magazines which function well. It appears that higher capacity magazines for this rifle are obscenely expensive and not always available. Has anyone used the "MDT Polymer Magazine" https://mdttac.com/magazines-polymer.html? It's claimed to fit the Tikka and offers 8 round capacity in .308. From the Big Empty, ELN.